package hva.team2.viavia.sensors.bluetoothChatAdapted;

/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *
 * Adapted by ViaVia project, 2013
 */


import hva.team2.viavia.R;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.Toast;


/**
 * This is the main Activity that displays the current chat session.
 */
public class BluetoothChat {
    // Debugging
    private static final String TAG = "BluetoothChat";
    private static final boolean D = true;

    // Message types sent from the BluetoothChatService Handler
    public static final int MESSAGE_STATE_CHANGE = 1;
    public static final int MESSAGE_READ = 2;
    public static final int MESSAGE_WRITE = 3;
    public static final int MESSAGE_DEVICE_NAME = 4;
    public static final int MESSAGE_TOAST = 5;

    // Key names received from the BluetoothChatService Handler
    public static final String DEVICE_NAME = "device_name";
    public static final String TOAST = "toast";

    // Intent request codes
    public static final int REQUEST_CONNECT_DEVICE_SECURE = 1;
    public static final int REQUEST_CONNECT_DEVICE_INSECURE = 2;
    public static final int REQUEST_ENABLE_BT = 3;

    //Added for deactiving


    public int deviceStatus = 1;

    public boolean btAdapterAvaliable = false;
    public Activity father = null;

    // Name of the connected device
    public String mConnectedDeviceName = null;
    // Array adapter for the conversation thread
    // String buffer for outgoing messages
    private StringBuffer mOutStringBuffer;
    // Local Bluetooth adapter
    public BluetoothAdapter mBluetoothAdapter = null;
    // Member object for the chat services
    public BluetoothChatService mChatService = null;


   //@Override
    public BluetoothChat(Activity father){//{(Bundle savedInstanceState) {
        //super.onCreate(savedInstanceState);
        if(D) Log.e(TAG, "+++ ON CREATE +++");
        // Get local Bluetooth adapter
        mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

        // If the adapter is null, then Bluetooth is not supported
        if (mBluetoothAdapter == null) {
            btAdapterAvaliable = false;
            Toast.makeText(father,"Bluetooth is not available", Toast.LENGTH_LONG).show();
        } else {
            btAdapterAvaliable = true;
        }
        this.father = father;



    }

    public void onStart() {
        if(D) Log.e(TAG, "++ ON START ++");

        // If BT is not on, request that it be enabled.
        // setupChat() will then be called during onActivityResult
        if (!mBluetoothAdapter.isEnabled()) {
            Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            father.startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
            // Otherwise, setup the chat session
        } else {
            if (mChatService == null) setupChat();
        }
    }


    public synchronized void onResume() {

        if(D) Log.e(TAG, "+ ON RESUME +");

        // Performing this check in onResume() covers the case in which BT was
        // not enabled during onStart(), so we were paused to enable it...
        // onResume() will be called when ACTION_REQUEST_ENABLE activity returns.
        if (mChatService != null) {
            // Only if the state is STATE_NONE, do we know that we haven't started already
            if (mChatService.getState() == BluetoothChatService.STATE_NONE) {
                // Start the Bluetooth chat services
                mChatService.start();
            }
        }
    }

    public void setupChat() {
        Log.d(TAG, "setupChat()");
        // Initialize the BluetoothChatService to perform bluetooth connections
        mChatService = new BluetoothChatService(father, mHandler);
        // Initialize the buffer for outgoing messages
        mOutStringBuffer = new StringBuffer("");
    }


    public synchronized void onPause() {
        if(D) Log.e(TAG, "- ON PAUSE -");
    }

    public void onStop() {
        if(D) Log.e(TAG, "-- ON STOP --");
    }

    public void onDestroy() {
        // Stop the Bluetooth chat services
        if (mChatService != null) mChatService.stop();
        if(D) Log.e(TAG, "--- ON DESTROY ---");
    }


    /**
     * Sends a message.
     * @param message  A string of text to send.
     */
    public void sendMessage(String message) {
        // Check that we're actually connected before trying anything
        if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) {
            Toast.makeText(father, R.string.title_not_connected, Toast.LENGTH_SHORT).show();
            return;
        }

        // Check that there's actually something to send
        if (message.length() > 0) {
            // Get the message bytes and tell the BluetoothChatService to write
            byte[] send = message.getBytes();
            mChatService.write(send);

            // Reset out string buffer to zero and clear the edit text field
            mOutStringBuffer.setLength(0);
        }
    }



    // The Handler that gets information back from the BluetoothChatService
    private final Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case MESSAGE_STATE_CHANGE:
                    if(D) Log.i(TAG, "MESSAGE_STATE_CHANGE: " + msg.arg1);
                    switch (msg.arg1) {
                        case BluetoothChatService.STATE_CONNECTED:
                            Log.e("BT","CONNECTED");
                            deviceStatus = BluetoothChatService.STATE_CONNECTED;
                            break;
                        case BluetoothChatService.STATE_CONNECTING:
                            Log.e("BT","CONNECTING");
                            deviceStatus = BluetoothChatService.STATE_CONNECTING;
                            break;
                        case BluetoothChatService.STATE_LISTEN:
                            Log.e("BT","LISTENING");
                            deviceStatus = BluetoothChatService.STATE_LISTEN;
                            break;
                        case BluetoothChatService.STATE_NONE:
                            Log.e("BT","NONE");
                            deviceStatus = BluetoothChatService.STATE_NONE;
                            break;
                    }
                    break;
                case MESSAGE_WRITE:
                    byte[] writeBuf = (byte[]) msg.obj;
                    // construct a string from the buffer
                    String writeMessage = new String(writeBuf);
                    break;
                case MESSAGE_READ:
                    byte[] readBuf = (byte[]) msg.obj;
                    // construct a string from the valid bytes in the buffer
                    String readMessage = new String(readBuf, 0, msg.arg1);
                    break;
                case MESSAGE_DEVICE_NAME:
                    Log.e("BT","DEVICE");
                    // save the connected device's name
                    mConnectedDeviceName = msg.getData().getString(DEVICE_NAME);
                    break;
                case MESSAGE_TOAST:
                    Log.e("BT","TOAST");
                    Toast.makeText(father, msg.getData().getString(TOAST),
                            Toast.LENGTH_SHORT).show();
                    break;
            }
        }
    };


    public void onActivityResult(int requestCode, int resultCode, Intent data, Activity father) {

        switch (requestCode) {
            case BluetoothChat.REQUEST_CONNECT_DEVICE_SECURE:
                // When DeviceListActivity returns with a device to connect
                if (resultCode == Activity.RESULT_OK) {
                    connectDevice(data, true);
                }
                break;
            case BluetoothChat.REQUEST_CONNECT_DEVICE_INSECURE:
                // When DeviceListActivity returns with a device to connect
                if (resultCode == Activity.RESULT_OK) {
                    connectDevice(data, false);
                }
                break;
            case BluetoothChat.REQUEST_ENABLE_BT:
                // When the request to enable Bluetooth returns
                if (resultCode == Activity.RESULT_OK) {
                    // Bluetooth is now enabled, so set up a chat session
                    setupChat();
                } else {
                    // User did not enable Bluetooth or an error occured
                    Toast.makeText(father, R.string.bt_not_enabled_leaving,
                            Toast.LENGTH_SHORT).show();

                }
        }
    }

    public void connectDevice(Intent data, boolean secure) {
        // Get the device MAC address

            String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);

            // Get the BluetoothDevice object
            BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
            // Attempt to connect to the device
            mChatService.connect(device, secure);

    }

}